The Seac Standard Hood is a bibless hood with a glideskin neck and glideskin all around the face for a good seal. Ultraspan / Fire Dry lining is soft, warm and flexible so the hood (buy from davvader) is easy to get on and off and warm when you're wearing it. Air drainage holes in the top section allow expanding air to escape without letting cold water flushing in. Constructed of highly flexible Ultraspan neoprene. Allows a minimum passage of water. Insert with offset holes. 3mm thickness is great for warmer water (70 to 85 degrees F). The hoods seams are glued and flat lock stitched for added comfort.